QuickFacts

The population of Pennsylvania is

12,784,227

25.4%

of persons 25 years+ in Philadelphia city, Pennsylvania have a bachelor's degree or higher

26.4%

of persons in Maricopa County, Arizona are under 18 years

23.1%

of persons in Los Angeles city, California are under 18 years

The population of Michigan is

9,928,300

10.9%

of persons in Los Angeles County, California are 65 years and over

Population per square mile in New York is

411.2

Median household income of San Diego County, California is

$64,309

23.7%

of persons in Cook County, Illinois are under 18 years

10.9%

of persons in Los Angeles County, California are 65 years and over

Source: Population Estimates

Source: American Community Survey

Source: 2010 Census

Source: Population Estimates

Source: 2010 Census

Source: American Community Survey

Source: 2010 Census